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Old Aug 16, 2009, 4:11 PM   #1
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Default Date Codes for Canon EF 70-200 f/2.8L IS USM?

I'm looking for a used Canon EF 70-200 f/2.8L IS USM lens and I see that many sellers mention date codes. Can someone please explain why this is important and what I should look for?
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Old Aug 17, 2009, 1:32 AM   #2
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Date codes will tell how old a lens is. Here is a link on how to read date codes http://www.the-digital-picture.com/C...ens-Aging.aspx

This can be important as there might have been a fault with a lens built between a specific date. e.g. The first batch of EF 24-105mm IS L lenses had a strange flare issue when shooting into direct light at a certain angle, these were repaired or replaced.
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Old Aug 17, 2009, 9:14 AM   #3
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Thank you for the link. Do you know where I can find information on which lenses are faulty as indicated by the date codes?
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Old Oct 2, 2009, 12:16 PM   #4
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I'm looking at some used glass too. Thanks for the link TG

dale
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